Analysis of the Differences in Physical and Chemical Indicators of Tea Product Quality Standards in China

LI Wenyan; ZHANG Lin; CHEN Liyan; ZHANG Yingbin; ZHOU Sujuan; HONG Yiwei; LIANG Sichen; SUN Hongfeng; CHEN Hongping

doi:10.13305/j.cnki.jts.2024.05.006

Journal of Tea Science >

2024 , Vol. 44 >Issue 5: 843 - 852

DOI: https://doi.org/10.13305/j.cnki.jts.2024.05.006

Research Paper

Analysis of the Differences in Physical and Chemical Indicators of Tea Product Quality Standards in China

LI Wenyan ,
ZHANG Lin ,
CHEN Liyan ,
ZHANG Yingbin ,
ZHOU Sujuan ,
HONG Yiwei ,
LIANG Sichen ,
SUN Hongfeng ,
CHEN Hongping

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1. Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
2. Key Laboratory of Tea Quality and Safety Control, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China;
3. Laboratory of Quality and Safety Risk Assessment for Tea Products (Hangzhou), Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China;
4. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China;
5. Shanghai Kangshi Food Technology Co., Ltd, Shanghai 201100, China;

Received date: 2024-07-17

Revised date: 2024-08-27

Online published: 2024-11-08

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Abstract

Physical and chemical components, as the key substance of tea quality, to a certain extent determine the flavor, quality characteristics, and quality level of tea, thus becoming the key indicator of Chinese tea product standards. China has set up a variety of standards related to tea products, which have certain common characteristics and specificities. However, at present, there is little research on the physical and chemical indicator characteristics of Chinese tea product standards. We collected 227 national, industry, and local standards for tea and related products in China, including 20 physical and chemical indicators. Due to differences in origin, raw materials, processing technology and harvesting time, there is some variability in the requirements of physical and chemical indicators among different tea standards, but the direction of quality requirements is consistent. The number of green tea standards, as well as their physical and chemical index parameters are the most numerous and most demanding. The requirements of national standards for tea are generally lower than those of industry or local standards. Compared with national basic tea product standards, geographical indications for tea products are generally higher in terms of physical and chemical index requirements. This study provided a reference for the construction and improvement of the product quality standard system of tea products in China.

Key words： tea quality standard; physical and chemical indicators; difference

Cite this article

LI Wenyan , ZHANG Lin , CHEN Liyan , ZHANG Yingbin , ZHOU Sujuan , HONG Yiwei , LIANG Sichen , SUN Hongfeng , CHEN Hongping . Analysis of the Differences in Physical and Chemical Indicators of Tea Product Quality Standards in China[J]. Journal of Tea Science, 2024 , 44(5) : 843 -852 . DOI: 10.13305/j.cnki.jts.2024.05.006

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